<template>
  <a-layout>
    <a-layout-sider width="200" style="background: #fff">
      <a-menu
              mode="inline"
              v-model:selectedKeys="selectedKeys2"
              v-model:openKeys="openKeys"
              :style="{ height: '100%', borderRight: 0 }"
              @click="handleClick"
      >
        <a-menu-item key="welcome">

            <MailOutlined />
            <span>欢迎</span>

        </a-menu-item>
<!--        一级循环-->
        <a-sub-menu v-for="item in level1" :key="item.id">
          <template v-slot:title>
           <span><user-outlined/>{{item.name}}</span>
          </template>
<!--        套上二级循环循环儿子-->
          <a-menu-item v-for="child in item.children" :key="child.id">
            <MailOutlined /><span>{{child.name}}</span>
          </a-menu-item>
        </a-sub-menu>
      </a-menu>
    </a-layout-sider>
    <a-layout-content
            :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <div class="welcome" v-show="isShowWelcome">
        <h1>欢迎使用java知识库</h1>
      </div>
      <a-list v-show="!isShowWelcome" item-layout="vertical" size="large" :grid="{ gutter: 20, column: 3 }"  :data-source="ebooks">

        <template #renderItem="{ item }">
          <a-list-item key="item.name">
            <template #actions>
          <span v-for="{ type, text } in actions" :key="type">
            <component v-bind:is="type" style="margin-right: 8px" />
            {{ text }}
          </span>
            </template>

            <a-list-item-meta :description="item.description">
              <template #title>
                <a :href="item.href">{{ item.name }}</a>
              </template>
              <template #avatar><a-avatar :src="item.cover" /></template>
            </a-list-item-meta>
          </a-list-item>
        </template>
      </a-list>

    </a-layout-content>
  </a-layout>
</template>

<script lang="ts">
import { defineComponent,onMounted,ref,reactive} from 'vue';
import axios from 'axios';
import { message } from 'ant-design-vue';
import {Tool} from "@/util/tool";

// const listData: any = [];
// for (let i = 0; i < 23; i++) {
//   listData.push({
//     href: 'https://www.antdv.com/',
//     title: `ant design vue part ${i}`,
//     avatar: 'https://zos.alipayobjects.com/rmsportal/ODTLcjxAfvqbxHnVXCYX.png',
//     description:
//             'Ant Design, a design language for background applications, is refined by Ant UED Team.',
//     content:
//             'We supply a series of design principles, practical patterns and high quality design resources (Sketch and Axure), to help people create their product prototypes beautifully and efficiently.',
//   });
// }

export default defineComponent({
  name: 'Home',
  setup(){

      const ebooks=ref();
      //const ebooks1=reactive({books:[]})
    const level1 =  ref();
    let categorys: any;
    /**
     * 查询所有分类
     **/
    const handleQueryCategory = () => {
      axios.get("/category/all").then((response) => {
        const data = response.data;
        if (data.success) {
          categorys = data.content;
          console.log("原始数组：", categorys);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys, 0);
          console.log("树形结构：", level1.value);
        } else {
          message.error(data.message);
        }
      });
    };

    const handleQueryEbook=()=>{
      axios.get("/ebook/list",{
        params:{
          page:1,
          size:1000,
          categoryId2: categoryId2
        }
      }).then((response)=>{
        const data= response.data
        ebooks.value= data.content.list
        //ebooks1.books=data.content

      })
    };


    const isShowWelcome = ref(true);
    let categoryId2=0;

    const handleClick = (value:any) => {
      console.log("menu click",value)
      if (value.key === 'welcome') {
        isShowWelcome.value = true;
      } else {
        categoryId2=value.key;
        isShowWelcome.value = false;
        handleQueryEbook()
      }
      // 点击黄色小灯泡，可以代码重构更简单
     // isShowWelcome.value = value.key === 'welcome';

    };



      onMounted(()=>{
        handleQueryCategory();

    })
    return{
        ebooks,
      // ebooks2:toRef(ebooks1,"books"),
      // listData,
       pagination : {
        onChange: (page: any) => {
          console.log(page);
        },
        pageSize: 3,
      },
     actions: [
      { type: 'StarOutlined', text: '156' },
      { type: 'LikeOutlined', text: '156' },
      { type: 'MessageOutlined', text: '2' },
    ],
      handleClick,
      level1,

      isShowWelcome
    }
  }

});
</script>

<style scoped>
  .ant-avatar {
    width: 50px;
    height: 50px;
    line-height: 50px;
    border-radius: 8%;
    margin: 5px 0;
  }
</style>
